/**
 * Copyright 2011 Honeywell Federal Manufacturing & Technologies, LLC. This material was produced under U.S. Government
 * contract DE-ACO4-01AL66850, Honeywell Federal Manufacturing & Technologies, LLC, (FM&T) with the U. S. Department of
 * Energy for the operation of the Kansas City Plant . The U.S. Government has rights to use, reproduce, and distribute
 * this software.  NEITHER THE GOVERNMENT NOR Honeywell Federal Manufacturing & Technologies, LLC, MAKES ANY WARRANTY,
 * EXPRESS OR IMPLIED, OR ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE.  If software is modified to produce
 * derivative works, such modified software should be clearly marked, so as not to confuse it with the version available
 * from FM&T.
 *
 * Additionally, this program is free software; you can redistribute it and/or modify it under the terms of the GNU
 * General Public License Version 3 published by the Free Software Foundation. Accordingly, this program is distributed in
 * the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this library.
 * If not, see http://www.gnu.org/licenses/.
 */
package org.braintrain.domain;

import org.hibernate.annotations.Sort;
import org.hibernate.annotations.SortType;

import javax.persistence.*;
import java.util.SortedSet;
import java.util.TreeSet;

/**
 * A Media Directory.  Serves as a sorting and referencing Object for Media
 * and other MediaDirectorys (files and children).
 * 
 * @author John Ericksen
 *
 */

@Entity
@Table( name="braintrain_directory" )
public class MediaDirectory extends FileManageable {
    
    private static final long serialVersionUID = 3778008071762523758L;
    
    private SortedSet<Media> files = new TreeSet<Media>();
    private SortedSet<MediaDirectory> children = new TreeSet<MediaDirectory>();

    @OneToMany(cascade = CascadeType.ALL, fetch=FetchType.LAZY)
    @JoinColumn( name="directory_id" )
    @Sort(type=SortType.NATURAL)
    public SortedSet<Media> getFiles() {
        return files;
    }

    public void setFiles(SortedSet<Media> files) {
        this.files = files;
    }

    @OneToMany(cascade = CascadeType.ALL, fetch=FetchType.LAZY)
    @JoinColumn( name="parent_id" )
    @Sort(type=SortType.NATURAL)
    public SortedSet<MediaDirectory> getChildren() {
        return children;
    }

    public void setChildren(SortedSet<MediaDirectory> children) {
        this.children = children;
    }

    @Transient
    public String getPath() {
        if(getParent() == null)
        {
            return "/" + this.getName() + "/";
        }
        return getParent().getPath() + this.getName() + "/";
        
    }
}
